html,body{
  height: 100%;
  background-color: #fff;
}
ul,ol{
  list-style: none;
  padding: 0;
  margin: 0;
}
.lt_container{
  max-width: 640px;
  min-width: 320px;
  width: 100%;
  height: 100%;
  overflow: hidden;
  margin: 0 auto;
  padding-top: 45px;
  padding-bottom: 55px;
  position: relative;
}
.lt_header{
  height: 45px;
  width: 100%;
  background-color: #069;
  padding-left: 45px;
  padding-right: 45px;
  position: absolute;
  top: 0;
  .icon_left,
  .icon_right{
    text-align: center;
    position: absolute;
    top: 0;
    a{
      display: block;
      width: 45px;
      height: 45px;
      line-height: 45px;
      text-align: center;
      color: #fff;
    }
  }
    .icon_left{
      left: 0;
    }
    .icon_right{
      right: 0;
    }
    h4{
      color: #fff;
      margin: 0;
      text-align: center;
      line-height: 45px;
      font-weight: 400;
      font-size: 20px;
    }
}
.lt_footer{
  height: 55px;
  width: 100%;
  background-color: #069;
  position: absolute;
  bottom: 0;
  li{
  float: left;
  width: 25%;
  text-align: center;
  padding-top: 10px;
  &.now{
    a{
      color: orange;
    }
    p{
      color: orange;
    }
  }
    a{
      color: #fff;
      display: block;
    }
    p{
      color: #fff;
    }
  }
}
.lt_main{
  width: 100%;
  height: 100%;
  position: relative;                                                                            
}
.search_box{
  padding: 10px;
  position: relative;
  input{
    height: 34px;
    line-height: 34px;
    font-size: 12px;
    border: 1px solid #007aff;
  }
  button{
    position: absolute;
    top: 10px;
    right: 10px;
    border-radius: 0 5px 5px 0;
  }
}
.lt_product{
  padding-top: 10px;
  .item{
    width: 45%;
    margin-left: 3%;
    text-align: center;
    border: 1px solid #ccc;
    margin-bottom: 10px;
    a{
      display: block;
      width: 100%;
      height: 100%;
      padding: 10px;
      img{
        width: 100%;
        display: block;
        margin: 0 auto;
      }
      .price{
        .oldprice{
          text-decoration: line-through;
        }
        .newprice{
          color: red;
          font-size: 20px;
        }
      }
    }
  }
}
